Interface onResponseHookHandler<RawServer, RawRequest, RawReply, RouteGeneric, ContextConfig, SchemaCompiler, TypeProvider, Logger>

onResponse is the seventh and last hook in the request hook lifecycle. The previous hook was onSend, there is no next hook. The onResponse hook is executed when a response has been sent, so you will not be able to send more data to the client. It can however be useful for sending data to external services, for example to gather statistics.

interface onResponseHookHandler<RawServer, RawRequest, RawReply, RouteGeneric, ContextConfig, SchemaCompiler, TypeProvider, Logger> ((this, request, reply, done) => void)

Type Parameters

RawServer extends RawServerBase = RawServerDefault
RawRequest extends RawRequestDefaultExpression<RawServer> = RawRequestDefaultExpression<RawServer>
RawReply extends RawReplyDefaultExpression<RawServer> = RawReplyDefaultExpression<RawServer>
RouteGeneric extends RouteGenericInterface = RouteGenericInterface
ContextConfig = ContextConfigDefault
SchemaCompiler extends FastifySchema = FastifySchema
TypeProvider extends FastifyTypeProvider = FastifyTypeProviderDefault
Logger extends FastifyBaseLogger = FastifyBaseLogger

onResponseHookHandler(this, request, reply, done): void
Parameters
- this: FastifyInstance<RawServer, RawRequest, RawReply, Logger, TypeProvider>
- request: FastifyRequest<RouteGeneric, RawServer, RawRequest, SchemaCompiler, TypeProvider, ContextConfig, Logger, ResolveFastifyRequestType<TypeProvider, SchemaCompiler, RouteGeneric>>
- reply: FastifyReply<RawServer, RawRequest, RawReply, RouteGeneric, ContextConfig, SchemaCompiler, TypeProvider, UndefinedToUnknown<KeysOf<RouteGeneric["Reply"]> extends never
  ? ResolveReplyFromSchemaCompiler<TypeProvider, SchemaCompiler>
  : RouteGeneric["Reply"]>>
- done: HookHandlerDoneFunction
Returns void
- Defined in node_modules/fastify/types/hooks.d.ts:398